Advances in Femtosecond Coherent Anti-Stokes Raman Scattering for Thermometry
Kaiyuan Song,
Mingze Xia,
Sheng Yun,
Yuan Zhang,
Sheng Zhang,
Hui Ge,
Yanyan Deng,
Meng Liu,
Wei Wang,
Longfei Zhao,
Yulei Wang,
Zhiwei Lv,
Yuanqin Xia
Affiliations
Kaiyuan Song
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
Mingze Xia
CNOOC Energy Technology and Services, Tianjin 300450, China
Sheng Yun
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
Yuan Zhang
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
Sheng Zhang
National Key Laboratory of Science and Technology on Tunable Laser, School of Astronautics, Harbin Institute of Technology, Harbin 150001, China
Hui Ge
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
Yanyan Deng
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
Meng Liu
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
Wei Wang
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
Longfei Zhao
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
Yulei Wang
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
Zhiwei Lv
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
Yuanqin Xia
Center for Advanced Laser Technology, Hebei Key Laboratory of Advanced Laser Technology and Equipment, Hebei University of Technology, Tianjin 300401, China
The combustion process is complex and harsh, and the supersonic combustion flow field is also characterized by short duration and supersonic speed, which makes the real-time diagnostic technology for the transient environment extremely demanding. It is of great significance to realize high time-resolved accurate measurement of temperature, component concentration, and other parametric information of the combustion field to study the transient chemical reaction dynamics of the combustion field. Femtosecond CARS spectroscopy can effectively avoid the collision effect between particles in the measurement process and reduce the influence of the non-resonant background to improve the measurement accuracy and realize the time-resolved measurement on a millisecond scale. This paper introduces the development history of femtosecond CARS spectroscopy, points out its advantages and disadvantages, and looks forward to the future development trend to carry out high time-resolved measurements, establish a database of temperature changes in various complex combustion fields, and provide support for the study of engine mechanisms.
